Spoiler for an automobile



FIG. 1 is a perspective view showing a spoiler in accordance with my design mounted on the trunk of an automobile;

FIG. 2 is an enlarged rear view of the spoiler;

FIG. 3 is an enlarged plan view thereof;

FIG. 4 is an enlarged bottom view thereof;

FIG. 5 is an enlarged left hand end view thereof; and,

FIG. 6 is an enlarged right hand end view thereof.

The broken line showing of environment is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a spoiler for an automobile, as shown and described. 